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Journal articles on the topic 'Sphagnum-dominated peatlands'

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Published: 2 June 2025

Last updated: 31 July 2025

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1

Kuhry, Peter, Barbara J. Nicholson, L. Dennis Gignac, Dale H. Vitt, and Suzanne E. Bayley. "Development of Sphagnum-dominated peatlands in boreal continental Canada." Canadian Journal of Botany 71, no. 1 (1993): 10–22. http://dx.doi.org/10.1139/b93-002.

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Peat cores from five Sphagnum-dominated peatlands in boreal continental Canada were analyzed for plant macro fossils. Results indicate that peatland development was influenced both by local autogenic and regional climatic factors. The general direction in peatland development from rich fen to poor fen to bog can primarily be ascribed to internal processes, especially peat accumulation. Quantitative paleoenvironmental reconstructions based on fossil moss assemblages indicate that all five peatlands were initially dominated by brown mosses with inferred pHs of approximately 6.0, and a water tabl

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2

Ferland, Chantale, and Line Rochefort. "Restoration techniques for Sphagnum-dominated peatlands." Canadian Journal of Botany 75, no. 7 (1997): 1110–18. http://dx.doi.org/10.1139/b97-122.

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Ombrotrophic peatlands in North America are harvested mainly for horticultural purposes. Following intense exploitation, these peatlands are generally abandoned to natural regeneration. The abandoned sites usually remain barren or poorly revegetated by a few vascular plants for several years. The post-harvested sites are not usually recolonized by Sphagnum species (peat mosses), which are the key species to restore peatland functions. The objective of this study was to develop restoration techniques for post-harvested peatlands. The experiments centred on Sphagnum reintroduction, since peat mo

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3

Booth, Robert K., Stephen T. Jackson, and Catherine E. D. Gray. "Paleoecology and high-resolution paleohydrology of a kettle peatland in upper Michigan." Quaternary Research 61, no. 1 (2004): 1–13. http://dx.doi.org/10.1016/j.yqres.2003.07.013.

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We investigated the developmental and hydrological history of a Sphagnum-dominated, kettle peatland in Upper Michigan using testate amoebae, plant macrofossils, and pollen. Our primary objective was to determine if the paleohydrological record of the peatland represents a record of past climate variability at subcentennial to millennial time scales. To assess the role of millennial-scale climate variability on peatland paleohydrology, we compared the timing of peatland and upland vegetation changes. To investigate the role of higher-frequency climate variability on peatland paleohydrology, we

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Cai, Shanshan, and Zicheng Yu. "Response of a warm temperate peatland to Holocene climate change in northeastern Pennsylvania." Quaternary Research 75, no. 3 (2011): 531–40. http://dx.doi.org/10.1016/j.yqres.2011.01.003.

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AbstractStudying boreal-type peatlands near the edge of their southern limit can provide insight into responses of boreal and sub-arctic peatlands to warmer climates. In this study, we investigated peatland history using multi-proxy records of sediment composition, plant macrofossil, pollen, and diatom analysis from a 14C-dated sediment core at Tannersville Bog in northeastern Pennsylvania, USA. Our results indicate that peat accumulation began with lake infilling of a glacial lake at ~ 9 ka as a rich fen dominated by brown mosses. It changed to a poor fen dominated by Cyperaceae (sedges) and

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5

O’Neill, Ally, Colin Tucker, and Evan S. Kane. "Fresh Air for the Mire-Breathing Hypothesis: Sphagnum Moss and Peat Structure Regulate the Response of CO2 Exchange to Altered Hydrology in a Northern Peatland Ecosystem." Water 14, no. 20 (2022): 3239. http://dx.doi.org/10.3390/w14203239.

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Sphagnum-dominated peatlands store more carbon than all of Earth’s forests, playing a large role in the balance of carbon dioxide. However, these carbon sinks face an uncertain future as the changing climate is likely to cause water stress, potentially reducing Sphagnum productivity and transitioning peatlands to carbon sources. A mesocosm experiment was performed on thirty-two peat cores collected from two peatland landforms: elevated mounds (hummocks) and lower, flat areas of the peatland (hollows). Both rainfall treatments and water tables were manipulated, and CO2 fluxes were measured. Oth

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6

Robert, Élisabeth Claire, Line Rochefort, and Michelle Garneau. "Natural revegetation of two block-cut mined peatlands in eastern Canada." Canadian Journal of Botany 77, no. 3 (1999): 447–59. http://dx.doi.org/10.1139/b99-019.

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Limited areas of post-mined peatlands are recolonized by Sphagnum-dominated communities. This study aims to recognize the spontaneous Sphagnum re-establishment process and to verify if Sphagnum directly colonizes the residual peat. Conditions favoring Sphagnum revegetation are suggested. Analyses of vegetation macrofossils of the newly formed peat allow the identification of colonizing species and vegetation succession profile. Botanical components of the pioneer horizon suggest that Sphagnum species can directly colonize the residual peat. When Polytrichum strictum (Kaulf.) Presl and Eriophor

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7

Benavides, Juan C., Dale H. Vitt, and David J. Cooper. "The High-Elevation Peatlands of the Northern Andes, Colombia." Plants 12, no. 4 (2023): 955. http://dx.doi.org/10.3390/plants12040955.

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Andean peatlands are important carbon reservoirs for countries in the northern Andes and have a unique diversity. Peatland plant diversity is generally related to hydrology and water chemistry, and the response of the vegetation in tropical high-elevation peatlands to changes in elevation, climate, and disturbance is poorly understood. Here, we address the questions of what the main vegetation types of peat-forming vegetation in the northern Andes are, and how the different vegetation types are related to water chemistry and pH. We measured plant diversity in 121 peatlands. We identified a tot

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Miao, Y., C. Song, L. Sun, X. Wang, H. Meng, and R. Mao. "Seasonal methane emission from a boreal peatland in continuous permafrost zone of Northeast China: effects of active layer depth and vegetation." Biogeosciences Discussions 9, no. 6 (2012): 6751–75. http://dx.doi.org/10.5194/bgd-9-6751-2012.

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Abstract. Boreal peatlands are significant natural sources of methane and especially vulnerable to abrupt climate change. However, the controlling factors of CH4 emission in boreal peatlands are still unclear. In this study, we investigated CH4 fluxes and abiotic factors (temperature, water table depth, active layer depth, and dissolved CH4 concentrations in pore water) during the growing seasons in 2010 and 2011 both in shrub-sphagnum- and sedge-dominated plant communities in continuous permafrost zone of Northeast China. The objective of our study was to examine the effects of vegetation typ

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9

Calver, Teri, Marty Yarmuch, Alexandra J. Conway, and Katherine Stewart. "Strong legacy effect of peat composition on physicochemical properties of reclamation coversoil." Canadian Journal of Soil Science 99, no. 3 (2019): 244–53. http://dx.doi.org/10.1139/cjss-2018-0160.

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Incorporation of salvaged peat in soil cover designs for oil sands mine reclamation is a common practice. However, current peat salvage practices do not differentiate between peatland types or the botanical composition of peat. In this study, we characterized the botanical composition of natural peat and coversoil on reclaimed sites and examined the influence of botanical composition on the physicochemical characteristics of reclaimed coversoil. Peat samples were collected from 15 natural peatlands (bog, poor fen, and rich fen) and peat coversoils were sampled from six reclaimed sites in the A

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10

Hutton, M. J., G. M. MacDonald, and R. J. Mott. "Postglacial vegetation history of the Mariana Lake region, Alberta." Canadian Journal of Earth Sciences 31, no. 2 (1994): 418–25. http://dx.doi.org/10.1139/e94-038.

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A fossil pollen record extending from 11 300 BP to the present was recovered from Mariana Lake, Alberta (55°57′N, 112°01′W). Initially, the region had a sparse vegetation dominated by forbs and graminoids, which at approximately 10 500 BP succeeded to Picea glauca forest. Picea mariana – Sphagnum peatlands began to develop between 10 000 and 9500 BP. After 9000 BP Sphagnum-dominated sites decreased; P. glauca declined while Betula increased. From 7500 to 5500 BP Populus reached its maximum Holocene representation in the vegetation. Sphagnum-dominated peatlands almost disappeared. The changes f

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Yu, Meng-Jie, Xian-Ting Wang, Ting Wang, et al. "Spatial and Seasonal Changes in Microbial Community of Hynobius amjiensis Breeding Pools in a Sphagnum-Dominated Peatland." Microorganisms 12, no. 7 (2024): 1344. http://dx.doi.org/10.3390/microorganisms12071344.

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Peatlands deliver a variety of beneficial ecosystem services, particularly serving as habitats for a diverse array of species. Hynobius amjiensis is a critically endangered amphibian initially discovered in a Sphagnum-dominated peatland in Anji, China. The unique habitat requirements of H. amjiensis make it highly vulnerable to environmental changes. Here, we investigated the different breeding pools of H. amjiensis in the Sphagnum-dominated peatland (the type locality) for a one-year period to evaluate the interactions among the egg sacs present, water quality, and microbial communities (16S

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12

Miao, Y., C. Song, L. Sun, X. Wang, H. Meng, and R. Mao. "Growing season methane emission from a boreal peatland in the continuous permafrost zone of Northeast China: effects of active layer depth and vegetation." Biogeosciences 9, no. 11 (2012): 4455–64. http://dx.doi.org/10.5194/bg-9-4455-2012.

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Abstract. Boreal peatlands are significant natural sources of methane and especially vulnerable to abrupt climate change. However, the controlling factors of CH4 emission in boreal peatlands are still unclear. In this study, we investigated CH4 fluxes and abiotic factors (temperature, water table depth, active layer depth, and dissolved CH4 concentrations in pore water) during the growing seasons in 2010 and 2011 in both shrub-sphagnum- and sedge-dominated plant communities in the continuous permafrost zone of Northeast China. The objective of our study was to examine the effects of vegetation

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13

Booth, Robert, and Jennifer Zygmunt. "Testate Amoebae as Paleoclimatic Proxies in Rocky Mountain Peatlands: A Case Study in the Greater Yellowstone Ecosystem." UW National Parks Service Research Station Annual Reports 26 (January 1, 2002): 85–96. http://dx.doi.org/10.13001/uwnpsrc.2002.3513.

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We investigated the potential of testate amoebae (Protozoa: Rhizopoda) for reconstructing past climate changes in the Rocky Mountain region. Our specific objectives were to determine environmental controls on modem testate amoeba distribution in Sphagnum-dominated peatlands of the region, reconstruct past temporal changes in testate amoebae from a Sphagnum-dominated peatland in southwestern Yellowstone National Park, and assess relationships between climate variability and testate amoebae for the past century. Our results indicate that substrate moisture is the dominant control on modem testat

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14

Deane, Patrick Jeffrey, Sophie Louise Wilkinson, Paul Adrian Moore, and James Michael Waddington. "Seismic Lines in Treed Boreal Peatlands as Analogs for Wildfire Fuel Modification Treatments." Fire 3, no. 2 (2020): 21. http://dx.doi.org/10.3390/fire3020021.

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Across the Boreal, there is an expansive wildland–society interface (WSI), where communities, infrastructure, and industry border natural ecosystems, exposing them to the impacts of natural disturbances, such as wildfire. Treed peatlands have previously received little attention with regard to wildfire management; however, their role in fire spread, and the contribution of peat smouldering to dangerous air pollution, have recently been highlighted. To help develop effective wildfire management techniques in treed peatlands, we use seismic line disturbance as an analog for peatland fuel modific

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15

Gignac, L. Dennis, and Peter J. Beckett. "The effect of smelting operations on peatlands near Sudbury, Ontario, Canada." Canadian Journal of Botany 64, no. 6 (1986): 1138–47. http://dx.doi.org/10.1139/b86-157.

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Accumulations of six metals (Cu, Ni, Mn, Al, Fe, and Ca) were analysed in peat and water for 18 peatlands east northeast of Falconbridge, Ontario, Canada. The peatlands had a minimum of 30 cm accumulation of peat, < 10 μg mL−1 Ca2+ in the water, and were from a variety of physiognomic dominance types. Significant correlations existed between the distance from smelting operations and the concentrations of Cu and Ni in the peat and water. Levels of Mn, Fe, and Ca were not related to distance. The vegetation was analysed on 11 of the 18 peatlands. With the exception of the two sites closest to

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16

Vitt, Dale H. "AN OVERVIEW OF FACTORS THAT INFLUENCE THE DEVELOPMENT OF CANADIAN PEATLANDS." Memoirs of the Entomological Society of Canada 126, S169 (1994): 7–20. http://dx.doi.org/10.4039/entm126169007-1.

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AbstractCanadian peatlands can be classified into ombrotrophic bogs and minerotrophic fens, the latter subdivided into poor, moderate-rich, and extreme-rich fens, each with distinctive indicator species, acidity, alkalinity, and base cation content. If hydrology is considered the most important factor in peatland classification then the primary division must be between ombrotrophic bogs and minerotrophic fens; however both chemical and vegetational differences strongly indicate that the primary division of peatlands should be between acidic, Sphagnum-dominated bogs and poor fens on the one han

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17

Zeh, Lilli, Marie Theresa Igel, Judith Schellekens, Juul Limpens, Luca Bragazza, and Karsten Kalbitz. "Vascular plants affect properties and decomposition of moss-dominated peat, particularly at elevated temperatures." Biogeosciences 17, no. 19 (2020): 4797–813. http://dx.doi.org/10.5194/bg-17-4797-2020.

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Abstract. Peatlands, storing significant amounts of carbon, are extremely vulnerable to climate change. The effects of climate change are projected to lead to a vegetation shift from Sphagnum mosses to sedges and shrubs. Impacts on the present moss-dominated peat remain largely unknown. In this study, we used a multiproxy approach to investigate the influence of contrasting vascular plant types (sedges, shrubs) on peat chemistry and decomposition. Peat cores of 20 cm depth and plant material (Sphagnum spp., Calluna vulgaris and Eriophorum vaginatum) from two ombrotrophic peatlands in the Itali

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18

Hargan, Kathryn E., Kathleen M. Rühland, Andrew M. Paterson, et al. "The influence of water-table depth and pH on the spatial distribution of diatom species in peatlands of the Boreal Shield and Hudson Plains, Canada." Botany 93, no. 2 (2015): 57–74. http://dx.doi.org/10.1139/cjb-2014-0138.

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Diatoms collected from 113 surface peat samples from the Boreal Shield and Hudson Plains show taxonomic distributions that are associated with macro-vegetation type, pH, and position relative to the water table, the main environmental variables measured in this study. The overall goal of our research was to determine the ecological distribution and response of diatoms to microhabitat conditions, and to assess the potential for diatoms to be applied as indicators of long-term environmental change in northern peatlands. Our results indicate that diatom assemblage composition was determined by bo

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Magnan, Gabriel, Michelle Garneau, and Serge Payette. "Holocene development of maritime ombrotrophic peatlands of the St. Lawrence North Shore in eastern Canada." Quaternary Research 82, no. 1 (2014): 96–106. http://dx.doi.org/10.1016/j.yqres.2014.04.016.

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AbstractMacrofossil analyses were used to reconstruct long-term vegetation successions within ombrotrophic peatlands (bogs) from the northern shorelines of the St. Lawrence Estuary (Baie-Comeau) and the Gulf of St. Lawrence (Havre-St-Pierre). Over the Holocene, the timing and the ecological context of peatland inception were similar in both regions and were mainly influenced by fluctuations in relative sea level. Peat accumulation started over deltaic sands after the withdrawal of the Goldthwait Sea from 7500 cal yr BP and above silt–clay deposits left by the Laurentian marine transgression af

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Lamentowicz, Mariusz, Mariusz Gałka, Katarzyna Marcisz, et al. "Unveiling tipping points in long-term ecological records from Sphagnum -dominated peatlands." Biology Letters 15, no. 4 (2019): 20190043. http://dx.doi.org/10.1098/rsbl.2019.0043.

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Unveiling past tipping points is a prerequisite for a better understanding of how individual species and entire ecosystems will respond to future climate change. Such knowledge is key for the implementation of biodiversity conservation. We identify the relationships between peatland vegetation and hydrological conditions over the past 2000 years using plant macrofossils, testate amoebae-based quantitative hydrological reconstructions and Sphagnum -moss functional traits from seven Polish peatland records. Using threshold indicator taxa analysis, we discovered that plant community composition s

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McQueen, Cyrus B. "Niche Diversification of Sphagnum in Bolivia." Bryophyte Diversity and Evolution 13, no. 1 (1997): 65–73. http://dx.doi.org/10.11646/bde.13.1.8.

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Niche breadth values of Sphagnum species in the páramo and cloud forests of Bolivia are similar to those reported for Sphagnum-dominated peatlands in North America, but niche overlap values are higher for Sphagnum species in Bolivia. The pH, conductivity, and concentrations of Ca, Mg, Na, K, and P suggest that Sphagnum habitats in Bolivia are ombrotrophic in nature. Sphagnum is limited to small, scattered carpets in the páramo and cloud forests of the Bolivian Andes between 1800 and 4200 m. Common species found in these habitats include S. alegrense Warnst., S. boliviae Warnst., S. cuspidatum

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Lamb, Eric G., and William Megill. "The Shoreline Fringe Forest and Adjacent Peatlands of the Southern Central British Columbia Coast." Canadian Field-Naturalist 117, no. 2 (2003): 209. http://dx.doi.org/10.22621/cfn.v117i2.684.

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Four distinct vegetation types are found in close proximity along an exposed section of the southern central coast of British Columbia. A coastal fringe of coniferous forest a few hundred metres wide is separated by a steep ecotone from an inland peatland-forest complex. The objectives of this study were (1) to describe the plant communities along the transition from forest to peatland, and (2) to identify some of the major environmental factors associated with those communities using indicator plant analysis. The coastal forest is dominated by Thuja plicata, Tsuga heterophylla, Picea sitchens

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Leroy, Fabien, Sébastien Gogo, Christophe Guimbaud, et al. "CO<sub>2</sub> and CH<sub>4</sub> budgets and global warming potential modifications in <i>Sphagnum</i>-dominated peat mesocosms invaded by <i>Molinia caerulea</i>." Biogeosciences 16, no. 20 (2019): 4085–95. http://dx.doi.org/10.5194/bg-16-4085-2019.

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Abstract. Plant communities play a key role in regulating greenhouse gas (GHG) emissions in peatland ecosystems and therefore in their ability to act as carbon (C) sinks. However, in response to global change, a shift from Sphagnum-dominated to vascular-plant-dominated peatlands may occur, with a potential alteration in their C-sink function. To investigate how the main GHG fluxes (CO2 and CH4) are affected by a plant community change (shift from dominance of Sphagnum mosses to vascular plants, i.e., Molinia caerulea), a mesocosm experiment was set up. Gross primary production (GPP), ecosystem

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McQueen, Cyrus B. "Niche Breadth and Overlap of Sphagnum Species in Costa Rica." Bryophyte Diversity and Evolution 11, no. 1 (1995): 119–27. http://dx.doi.org/10.11646/bde.11.1.7.

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Niche breadth and overlap values of Sphagnum species in Costa Rica are similar to those reported for Sphagnum-dominated peatlands in North America. Sphagnum magellanicum Brid. and S. sparsum Hampe have the broadest niche breadth of the common species in Costa Rica. Although S. sancto-josephense Crum & Crosby has a relatively narrow niche breadth, it is one of the most common species along with S. magellancium and S. sparsum in the Sphagnum habitats of Costa Rica. Niche overlap is high among species with the exception of S. platyphyllum (Braithw.) Warnst. which is found in habitats that are

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Larocque, M., M. Ferlatte, S. Pellerin, et al. "Chemical and botanical indicators of groundwater inflow to Sphagnum -dominated peatlands." Ecological Indicators 64 (May 2016): 142–51. http://dx.doi.org/10.1016/j.ecolind.2015.12.012.

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van den Elzen, Eva, Martine A. R. Kox, Sarah F. Harpenslager, et al. "Symbiosis revisited: phosphorus and acid buffering stimulate N<sub>2</sub> fixation but not <i>Sphagnum</i> growth." Biogeosciences 14, no. 5 (2017): 1111–22. http://dx.doi.org/10.5194/bg-14-1111-2017.

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Abstract. In pristine Sphagnum-dominated peatlands, (di)nitrogen (N2) fixing (diazotrophic) microbial communities associated with Sphagnum mosses contribute substantially to the total nitrogen input, increasing carbon sequestration. The rates of symbiotic nitrogen fixation reported for Sphagnum peatlands, are, however, highly variable, and experimental work on regulating factors that can mechanistically explain this variation is largely lacking. For two common fen species (Sphagnum palustre and S. squarrosum) from a high nitrogen deposition area (25 kg N ha−1 yr−1), we found that diazotrophic

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Vitt, Dale H., Diana G. Horton, Nancy G. Slack, and Nils Malmer. "Sphagnum-dominated peatlands of the hyperoceanic British Columbia coast: patterns in surface water chemistry and vegetation." Canadian Journal of Forest Research 20, no. 6 (1990): 696–711. http://dx.doi.org/10.1139/x90-093.

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Vegetation from 133 relevés representing a broad spectrum of peatland types from the Prince Rupert area, British Columbia was divided into six relevé groups. The 210 taxa found in these relevés were classified into six species groups. In general, the species groups are related to one another along shade and height (above water level) gradients. Chemical and physiographic gradients that correlate with the relevé distribution pattern on a detrended correspondence analysis ordination are surface water chemistry, shade, and height. In particular, the major gradient influencing the first axis of th

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Williams, Christopher J., Joseph B. Yavitt, R. Kelman Wieder, and Natalie L. Cleavitt. "Cupric oxide oxidation products of northern peat and peat-forming plants." Canadian Journal of Botany 76, no. 1 (1998): 51–62. http://dx.doi.org/10.1139/b97-150.

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Alkaline cupric oxide oxidation and proximate analysis were used to investigate the sources and diagenetic state of organic matter in six Sphagnum-dominated peatlands located between Alberta, Canada, and Ohio, U.S.A. Cupric oxide oxidation was also used to characterize vascular and nonvascular wetland plant species to provide a specific biological fingerprint of these plant tissues. Oxidation of 15 species of Sphagnum moss released large quantities of unsubstituted p-hydroxyl phenolic compounds as well as the species specific sphagnum acid (p-hydroxy-β-[carboxymethyl]-cinnamic acid). By contra

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Barreto, Carlos, and Zoë Lindo. "Checklist of oribatid mites (Acari: Oribatida) from two contrasting boreal fens: an update on oribatid mites of Canadian peatlands." Systematic and Applied Acarology 26, no. 5 (2021): 866–84. http://dx.doi.org/10.11158/saa.26.5.4.

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A checklist of the oribatid mite species from two boreal fens in Northern Ontario, Canada is presented. 174 peat soil samples, collected between 2015–2020, yielded a heterogeneous assemblage of 80 species, 57 genera and 33 families. Species richness and diversity were significantly higher in a Sphagnum-dominated fen (69 species) compared to a Carex-dominated fen (51 species), and although 40 species were found at both sites, overall composition was significantly different between the two sites. We also present an update to the seminal work of Behan-Pelletier and Bissett (1994) on Oribatida of

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Lacourse, Terri, Matthew A. Adeleye, and Johanna R. Stewart. "Peatland formation, succession and carbon accumulation at a mid-elevation poor fen in Pacific Canada." Holocene 29, no. 11 (2019): 1694–707. http://dx.doi.org/10.1177/0959683619862041.

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We reconstructed peatland formation, succession and long-term rates of carbon (C) accumulation at a mid-elevation poor fen on Vancouver Island in coastal British Columbia, Canada. Multi-proxy paleoecological analyses including bulk chemistry, peat composition, macrofossils, pollen and non-pollen palynomorphs show terrestrialization starting from a small oligotrophic lake 14,000 cal BP. Peat accumulation began by 11,600 cal BP with the transition to an emergent Nuphar-dominated shallow-water marsh. Terrestrialization in the center of the peatland was more or less complete by 10,400 cal BP with

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Pellerin, Stéphanie, and Claude Lavoie. "Peatland fragments of southern Quebec: recent evolution of their vegetation structure." Canadian Journal of Botany 78, no. 2 (2000): 255–65. http://dx.doi.org/10.1139/b99-186.

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One of the main problems associated with small natural reserves is their progressive loss of ecological integrity owing to the influence of surrounding human activities. In southern Quebec (Bas-Saint-Laurent, Canada), peatlands are extensively mined to extract peat for the production of horticultural compost and are isolated within agricultural lands. Government environmental agencies have proposed that peat industries set aside 5-10% of a bog's area as a natural refuge for peatland plants and animals. Do these fragments constitute reliable refuges? Do they maintain their ecological characteri

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Robinson, Stephen D. "Carbon accumulation in peatlands, southwestern Northwest Territories, Canada." Canadian Journal of Soil Science 86, Special Issue (2006): 305–19. http://dx.doi.org/10.4141/s05-086.

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Northern peatlands have stored significant quantities of carbon (C) since the early Holocene at rates that vary among peatland types. Pollen concentration dating was used to provide estimates o f true C accumulation and sequestration efficiency in different peatland systems in the discontinuous permafrost zone near Fort Simpson, Northwest Territories, Canada. The catotelm portions of bog, permafrost-affected peat plateau, and Sphagnum-dominated cores were interpreted to conform to Clymo’s (1984) model of C accumulation, while peat deposited under conditions with high water tables (rich fen and

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Bragazza, L., and R. Gerdol. "Are nutrient availability and acidity‐alkalinity gradients related in Sphagnum‐dominated peatlands?" Journal of Vegetation Science 13, no. 4 (2002): 473–82. http://dx.doi.org/10.1111/j.1654-1103.2002.tb02074.x.

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Gąbka, Maciej, and Mariusz Lamentowicz. "Vegetation-Environment Relationships in Peatlands Dominated by Sphagnum fallax in Western Poland." Folia Geobotanica 43, no. 4 (2008): 413–29. http://dx.doi.org/10.1007/s12224-008-9023-8.

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Saldaeva, Nailia, Kirill Babeshko, Viktor Chernyshov, et al. "Biodiversity of testate amoebae in Sphagnum bogs: the dataset from forest-steppe ecotone (Middle Volga Territory, Russia)." Biodiversity Data Journal 12 (June 12, 2024): e125582. https://doi.org/10.3897/BDJ.12.e125582.

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Testate amoebae are a polyphyletic group of unicellular eukaryotic organisms that are characterised by a rigid shell and inhabit mostly freshwater and terrestrial ecosystems. They are particularly abundant in peatlands, especially in <i>Sphagnum</i>-dominated biotopes. Peatland hydrology is the most important influence on testate amoebae communities. The good preservation of the shells in peat deposits and their response to hydrological regime changes are the principles for palaeohydrological reconstructions. Any changes in the water balance of mires should be expected to have far-reaching eff

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Camill, Philip. "Patterns of boreal permafrost peatland vegetation across environmental gradients sensitive to climate warming." Canadian Journal of Botany 77, no. 5 (1999): 721–33. http://dx.doi.org/10.1139/b99-008.

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This study documents changes in community and functional group across environmental gradients sensitive to climate warming in boreal permafrost peatlands and describes how future changes in temperature and precipitation may lead to changes in species composition and ecosystem properties. At the landscape scale, the presence of permafrost strongly influenced species composition. The position of permafrost thaw affected surface water pH and species composition. At local scales, a combination of water table depth and vegetation structure strongly controlled community composition. Permafrost plate

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Corson, Angie, and Daniel Campbell. "Testing Protocols to Restore Disturbed Sphagnum-dominated Peatlands in the Hudson Bay Lowland." Wetlands 33, no. 2 (2013): 291–99. http://dx.doi.org/10.1007/s13157-013-0383-3.

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Bandopadhyay, Subhajit, Anshu Rastogi, Uwe Rascher, et al. "Hyplant-Derived Sun-Induced Fluorescence—A New Opportunity to Disentangle Complex Vegetation Signals from Diverse Vegetation Types." Remote Sensing 11, no. 14 (2019): 1691. http://dx.doi.org/10.3390/rs11141691.

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Hyperspectral remote sensing (RS) provides unique possibilities to monitor peatland vegetation traits and their temporal dynamics at a fine spatial scale. Peatlands provide a vital contribution to ecosystem services by their massive carbon storage and wide heterogeneity. However, monitoring, understanding, and disentangling the diverse vegetation traits from a heterogeneous landscape using complex RS signal is challenging, due to its wide biodiversity and distinctive plant species composition. In this work, we aim to demonstrate, for the first time, the large heterogeneity of peatland vegetati

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Zoltai, Stephen C. "Permafrost Distribution in Peatlands of West-Central Canada During the Holocene Warm Period 6000 Years BP." Géographie physique et Quaternaire 49, no. 1 (2007): 45–54. http://dx.doi.org/10.7202/033029ar.

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ABSTRACTThe extent and distribution of permafrost in peatlands 6000 years ago was investigated in the present discontinuous and continuous permafrost zones of west-central Canada. Permafrost peatlands were cored at 161 locations and the floristic composition of the peat was determined from macrofossil analysis. The reconstructed paleoenvironments were used to indicate the presence or absence of permafrost at the time of peat formation. Chronological control was provided by radiocarbon dating of substantial changes in the peat sequences and by dates of basal peat deposits. Peatland formation be

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Fernández, Leonardo D., Erwin Domínguez, Antonio Parra-Gómez, and Enrique Lara. "Protist ecology in Patagonian peatlands: pH, organic phosphorus, and sulfate as key drivers of testate amoeba diversity in undisturbed ecosystems." ZooKeys 1239 (May 21, 2025): 75–101. https://doi.org/10.3897/zookeys.1239.146538.

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Peatlands in southern Chile, particularly in the remote Aysén region, are unique ecosystems that remain understudied despite their ecological significance as natural laboratories. These near-pristine environments serve as essential water reservoirs and harbor largely unexplored microbial diversity. Testate amoebae, a group of shelled protists, play key roles in nutrient cycling and are highly sensitive to environmental changes, making them valuable bioindicators. However, the ecological drivers shaping their diversity and community composition in Chilean peatlands remain poorly understood. Thi

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Kip, N., C. Fritz, E. S. Langelaan, et al. "Methanotrophic activity and diversity in different <i>Sphagnum magellanicum</i> dominated habitats in the southernmost peat bogs of Patagonia." Biogeosciences Discussions 8, no. 5 (2011): 9357–80. http://dx.doi.org/10.5194/bgd-8-9357-2011.

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Abstract. Sphagnum peatlands are important ecosystems in the methane cycle. Methanotrophs living in and on the Sphagnum mosses are able to act as a methane filter and thereby reduce methane emissions. We investigated in situ methane concentrations and the corresponding activity and diversity of methanotrophs in different Sphagnum dominated bog microhabitats. In contrast to the Northern Hemisphere peat ecosystems the temperate South American peat bogs are dominated by one moss species; Sphagnum magellanicum. This permitted a species-independent comparison of the different bog microhabitats. Pot

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Kip, N., C. Fritz, E. S. Langelaan, et al. "Methanotrophic activity and diversity in different <i>Sphagnum magellanicum</i> dominated habitats in the southernmost peat bogs of Patagonia." Biogeosciences 9, no. 1 (2012): 47–55. http://dx.doi.org/10.5194/bg-9-47-2012.

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Abstract. Sphagnum peatlands are important ecosystems in the methane cycle. Methanotrophs living inside the dead hyaline cells or on the Sphagnum mosses are able to act as a methane filter and thereby reduce methane emissions. We investigated in situ methane concentrations and the corresponding activity and diversity of methanotrophs in different Sphagnum dominated bog microhabitats. In contrast to the Northern Hemisphere peat ecosystems the temperate South American peat bogs are dominated by one moss species; Sphagnum magellanicum. This permitted a species-independent comparison of the differ

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Martí, Magalí, Heli Juottonen, Bjorn J. M. Robroek, et al. "Nitrogen and methanogen community composition within and among three Sphagnum dominated peatlands in Scandinavia." Soil Biology and Biochemistry 81 (February 2015): 204–11. http://dx.doi.org/10.1016/j.soilbio.2014.11.016.

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Lamentowicz, Mariusz, Mariusz Gałka, Katarzyna Marcisz, et al. "Correction to ‘Unveiling tipping points in long-term ecological records from Sphagnum-dominated peatlands’." Biology Letters 15, no. 6 (2019): 20190358. http://dx.doi.org/10.1098/rsbl.2019.0358.

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Bradley, Andrew V., Roxane Andersen, Chris Marshall, Andrew Sowter, and David J. Large. "Identification of typical ecohydrological behaviours using InSAR allows landscape-scale mapping of peatland condition." Earth Surface Dynamics 10, no. 2 (2022): 261–77. http://dx.doi.org/10.5194/esurf-10-261-2022.

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Abstract. Better tools for rapid and reliable assessment of global peatland extent and condition are urgently needed to support action to prevent further decline of peatlands. Peatland surface motion is a response to changes in the water and gas content of a peat body regulated by the ecology and hydrology of a peatland system. Surface motion is therefore a sensitive measure of ecohydrological condition but has traditionally been impossible to measure at the landscape scale. Here we examine the potential of surface motion metrics derived from satellite interferometric synthetic aperture radar

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Speranskaya, Leeza, David I. Campbell, Peter M. Lafleur, and Elyn R. Humphreys. "Peatland evaporation across hemispheres: contrasting controls and sensitivity to climate warming driven by plant functional types." Biogeosciences 21, no. 5 (2024): 1173–90. http://dx.doi.org/10.5194/bg-21-1173-2024.

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Abstract. Peatlands store disproportionally large amounts of carbon per unit area, a function that is dependent on maintaining high and stable water tables. Climate change is likely to negatively impact carbon storage in peatlands, in part due to increases in vapour pressure deficit (VPD) driving higher evaporation (E) rates. However, the response of E to increasing VPD depends on the dominant vegetation type within peatlands. In this study, we used multiple years of eddy covariance (EC) measurements to compare E regimes at two peatlands with contrasting vegetation types – Kopuatai bog in Aote

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Fernández, Leonardo D., Erwin Domínguez, Antonio Parra-Gómez, and Enrique Lara. "Protist ecology in Patagonian peatlands: pH, organic phosphorus, and sulfate as key drivers of testate amoeba diversity in undisturbed ecosystems." ZooKeys 1239 (May 21, 2025): 75–101. https://doi.org/10.3897/zookeys.1239.146538.

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Abstract:

Peatlands in southern Chile, particularly in the remote Aysén region, are unique ecosystems that remain understudied despite their ecological significance as natural laboratories. These near-pristine environments serve as essential water reservoirs and harbor largely unexplored microbial diversity. Testate amoebae, a group of shelled protists, play key roles in nutrient cycling and are highly sensitive to environmental changes, making them valuable bioindicators. However, the ecological drivers shaping their diversity and community composition in Chilean peatlands remain poorly understood. Thi

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Gajewski, K., Robert Vance, M. Sawada, et al. "The climate of North America and adjacent ocean waters ca. 6 ka." Canadian Journal of Earth Sciences 37, no. 5 (2000): 661–81. http://dx.doi.org/10.1139/e99-065.

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The climate of North America and the adjacent ocean at 6000 BP was estimated using five independent approaches. Using pollen data, the terrestrial climate was estimated by the movement of ecozone boundaries and by the method of modern analogues. Both analyses indicate warmer temperatures in the western Great Lakes area and the northern Great Plains. A model of Sphagnum-dominated peatland initiation, when forced by Canadian Climate Model 6 ka output projected a cooler and (or) wetter climate for continental western North America. Contrary to this, a reconstruction of the distribution of Sphagnu

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Wu, Y., C. Blodau, T. R. Moore, J. L. Bubier, S. Juutinen, and T. Larmola. "Effects of experimental nitrogen deposition on peatland carbon pools and fluxes: a modeling analysis." Biogeosciences Discussions 11, no. 7 (2014): 10271–321. http://dx.doi.org/10.5194/bgd-11-10271-2014.

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Abstract. Nitrogen (N) pollution of peatlands alters their carbon (C) balances, yet long-term effects and controls are poorly understood. We applied the model PEATBOG to analyze impacts of long-term nitrogen (N) fertilization on C cycling in an ombrotrophic bog. Simulations of summer gross ecosystem production (GEP), ecosystem respiration (ER) and net ecosystem exchange (NEE) were evaluated against 8 years of observations and extrapolated for 80 years to identify potential effects of N fertilization and factors influencing model behavior. The model successfully simulated moss decline and raise

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Haynes, Kristine M., Michael D. Preston, James W. McLaughlin, Kara Webster, and Nathan Basiliko. "Dissimilar bacterial and fungal decomposer communities across rich to poor fen peatlands exhibit functional redundancy." Canadian Journal of Soil Science 95, no. 3 (2015): 219–30. http://dx.doi.org/10.4141/cjss-2014-062.

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Haynes, K. M., Preston, M. D., McLaughlin, J. W., Webster, K. and Basiliko, N. 2015. Dissimilar bacterial and fungal decomposer communities across rich to poor fen peatlands exhibit functional redundancy. Can. J. Soil Sci. 95: 219–230. Climatic and environmental changes can lead to shifts in the dominant vegetation communities present in northern peatland ecosystems, including from Sphagnum- to vascular-dominated systems. Such shifts in vegetation result in changes to the chemical quality of carbon substrates for soil microbial decomposers, with leaves and roots deposited in the peat surface a

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